摘要
目前主动脉CT血管造影(ACTA)被认为是诊断主动脉病变首选的非侵入性检查方法,但ACTA辐射剂量较大。随着临床应用的普及,ACTA检查辐射剂量的问题受到患者和放射科医师越来越多的关注。根据国际放射防护委员会提出辐射防护最优化原则,在保证图像质量满足诊断需求的情况下合理降低CT辐射剂量已成为重要的技术理论课题之一。该文对近年来多层螺旋ACTA双低扫描的研究进展进行了综述。
At present,the aortic computed tomography （ CT） angiography （ACTA） is considered asthe primary non-invasive method in diagnosis of aortic lesions, but ACTA generates a relatively high quantity of radiation. Along with the widespread clinical application,the exposure to radiation of ACTA has catcand more attention of the patients and radiologists. According to the radiation protection optimiz（as low as reasonably achievable, ALARA） proposed by the International Commission on tion （ICRP）,how to reduce the CT radiation dose but guarantee the imaging quality to meet the demand ofclinical diagnosis has become one of the technical and theoretical issues. This article revie＂wed the resgress on the multi-slice spiral ACTA with low tube voltage and low-dose contrast agent.
出处
《新医学》
2017年第4期213-216,共4页
Journal of New Medicine
